leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

xfs: replace xfs_sb_version checks with feature flag checks

Browse Source 
Convert the xfs_sb_version_hasfoo() to checks against
mp->m_features. Checks of the superblock itself during disk
operations (e.g. in the read/write verifiers and the to/from disk
formatters) are not converted - they operate purely on the
superblock state. Everything else should use the mount features.

Large parts of this conversion were done with sed with commands like
this:

for f in `git grep -l xfs_sb_version_has fs/xfs/*.c`; do
	sed -i -e 's/xfs_sb_version_has\(.*\)(&\(.*\)->m_sb)/xfs_has_\1(\2)/' $f
done

With manual cleanups for things like "xfs_has_extflgbit" and other
little inconsistencies in naming.

The result is ia lot less typing to check features and an XFS binary
size reduced by a bit over 3kB:

$ size -t fs/xfs/built-in.a
	text	   data	    bss	    dec	    hex	filenam
before	1130866  311352     484 1442702  16038e (TOTALS)
after	1127727  311352     484 1439563  15f74b (TOTALS)

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Dave Chinner
2021-08-18 18:46:37 -07:00
committed by Darrick J. Wong
parent a1d86e8dec
commit 38c26bfd90
75 changed files with 267 additions and 267 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
fs/xfs/libxfs/xfs_alloc.c
View File

@@ -51,7 +51,7 @@ xfs_agfl_size(
{
unsigned int size = mp->m_sb.sb_sectsize;
if (xfs_sb_version_hascrc(&mp->m_sb))
if (xfs_has_crc(mp))
size -= sizeof(struct xfs_agfl);
return size / sizeof(xfs_agblock_t);
@@ -61,9 +61,9 @@ unsigned int
xfs_refc_block(
struct xfs_mount *mp)
{
if (xfs_sb_version_hasrmapbt(&mp->m_sb))
if (xfs_has_rmapbt(mp))
return XFS_RMAP_BLOCK(mp) + 1;
if (xfs_sb_version_hasfinobt(&mp->m_sb))
if (xfs_has_finobt(mp))
return XFS_FIBT_BLOCK(mp) + 1;
return XFS_IBT_BLOCK(mp) + 1;
}
@@ -72,11 +72,11 @@ xfs_extlen_t
xfs_prealloc_blocks(
struct xfs_mount *mp)
{
if (xfs_sb_version_hasreflink(&mp->m_sb))
if (xfs_has_reflink(mp))
return xfs_refc_block(mp) + 1;
if (xfs_sb_version_hasrmapbt(&mp->m_sb))
if (xfs_has_rmapbt(mp))
return XFS_RMAP_BLOCK(mp) + 1;
if (xfs_sb_version_hasfinobt(&mp->m_sb))
if (xfs_has_finobt(mp))
return XFS_FIBT_BLOCK(mp) + 1;
return XFS_IBT_BLOCK(mp) + 1;
}
@@ -126,11 +126,11 @@ xfs_alloc_ag_max_usable(
blocks = XFS_BB_TO_FSB(mp, XFS_FSS_TO_BB(mp, 4)); /* ag headers */
blocks += XFS_ALLOC_AGFL_RESERVE;
blocks += 3; /* AGF, AGI btree root blocks */
if (xfs_sb_version_hasfinobt(&mp->m_sb))
if (xfs_has_finobt(mp))
blocks++; /* finobt root block */
if (xfs_sb_version_hasrmapbt(&mp->m_sb))
if (xfs_has_rmapbt(mp))
blocks++; /* rmap root block */
if (xfs_sb_version_hasreflink(&mp->m_sb))
if (xfs_has_reflink(mp))
blocks++; /* refcount root block */
return mp->m_sb.sb_agblocks - blocks;
@@ -598,7 +598,7 @@ xfs_agfl_verify(
* AGFL is what the AGF says is active. We can't get to the AGF, so we
* can't verify just those entries are valid.
*/
if (!xfs_sb_version_hascrc(&mp->m_sb))
if (!xfs_has_crc(mp))
return NULL;
if (!xfs_verify_magic(bp, agfl->agfl_magicnum))
@@ -638,7 +638,7 @@ xfs_agfl_read_verify(
* AGFL is what the AGF says is active. We can't get to the AGF, so we
* can't verify just those entries are valid.
*/
if (!xfs_sb_version_hascrc(&mp->m_sb))
if (!xfs_has_crc(mp))
return;
if (!xfs_buf_verify_cksum(bp, XFS_AGFL_CRC_OFF))
@@ -659,7 +659,7 @@ xfs_agfl_write_verify(
xfs_failaddr_t fa;
/* no verification of non-crc AGFLs */
if (!xfs_sb_version_hascrc(&mp->m_sb))
if (!xfs_has_crc(mp))
return;
fa = xfs_agfl_verify(bp);
@@ -2373,7 +2373,7 @@ xfs_agfl_needs_reset(
int active;
/* no agfl header on v4 supers */
if (!xfs_sb_version_hascrc(&mp->m_sb))
if (!xfs_has_crc(mp))
return false;
/*
@@ -2877,7 +2877,7 @@ xfs_agf_verify(
struct xfs_mount *mp = bp->b_mount;
struct xfs_agf *agf = bp->b_addr;
if (xfs_sb_version_hascrc(&mp->m_sb)) {
if (xfs_has_crc(mp)) {
if (!uuid_equal(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid))
return __this_address;
if (!xfs_log_check_lsn(mp, be64_to_cpu(agf->agf_lsn)))
@@ -2907,7 +2907,7 @@ xfs_agf_verify(
be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > mp->m_ag_maxlevels)
return __this_address;
if (xfs_sb_version_hasrmapbt(&mp->m_sb) &&
if (xfs_has_rmapbt(mp) &&
(be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) < 1 ||
be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > mp->m_rmap_maxlevels))
return __this_address;
@@ -2950,7 +2950,7 @@ xfs_agf_read_verify(
struct xfs_mount *mp = bp->b_mount;
xfs_failaddr_t fa;
if (xfs_sb_version_hascrc(&mp->m_sb) &&
if (xfs_has_crc(mp) &&
!xfs_buf_verify_cksum(bp, XFS_AGF_CRC_OFF))
xfs_verifier_error(bp, -EFSBADCRC, __this_address);
else {
@@ -2975,7 +2975,7 @@ xfs_agf_write_verify(
return;
}
if (!xfs_sb_version_hascrc(&mp->m_sb))
if (!xfs_has_crc(mp))
return;
if (bip)